线程中调用Request报"请求在此上下文中不可用。"

[asdfa23rdadsdfa]

public string DecryptionParms
    {
        get
        {
            return Request.QueryString["tosee"];  //这里报错
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (CheckParms())
            {
                Thread thread = new Thread(Check);

                thread.IsBackground = true;

                thread.Start();
                
                Response.Write(" ");
            }
        }
    }

    protected static readonly RequestDetails objRequestDetails = new RequestDetails();

    public void Check()
    {
        string[] parms = DecryptionParms.Split('#');
        bool relParms = true;
        long[] longParms = new long[3];
        for (int i = 0; i < 3; i++)
        { 
            if (string.IsNullOrEmpty(parms[i]))
            {
                relParms = false;
                break;
            }
            else
            {
                relParms = long.TryParse(parms[i], out longParms[i]);
                if (!relParms)
                    break;
            }
        }
        if (relParms)
        {
            objRequestDetails.Visitor = longParms[0];
            objRequestDetails.VisitorPage = longParms[1];
            objRequestDetails.VisitorPage = longParms[2];
            objRequestDetails.ImageOutCode = string.Empty;
            objRequestDetails.Behavior = 0;  //访问
            try
            {
                lock (objRequestDetails)
                {
                    StatisticsManager.AddRequestDetails(objRequestDetails);
                    Thread.Sleep(1000);
                }
                Response.Write(" ");
            }
            catch (SqlException se)
            {
                Response.Write(se.Message);
            }
        }
    }

    /// <summary>
    /// 检查参数是否传递过来
    /// </summary>
    /// <returns></returns>
    protected bool CheckParms()
    {
        if (string.IsNullOrEmpty(Request.QueryString["tosee"]))
            return false;
        else
            return true;
    }

[wuyq11]

HttpContext.Current.Request

[asdfa23rdadsdfa]

[Quote=引用 1 楼 wuyq11 的回复:]
HttpContext.Current.Request
[/Quote]
试过了。
也一样。

然后Thread调用的方法里不能Repsonse.Write吗

[asdfa23rdadsdfa]

我把Request.QueryString["tosee"]; 放到Check()里获取，调式了二次，一次成功，一次报"请求在此上下文中不可用"

[孟子E章]

线程里面不是Request请求，哪来的 HttpContext.Current.Request啊

[孟子E章]

一个办法是将 HttpContext.Current.Request对象作为参数，再调用的时候传递到线程里面

[asdfa23rdadsdfa]

Thread thread = new Thread(Check);
这一步只有无参的方法可以传递

[wuyq11]

Thread th = new Thread(new ParameterizedThreadStart(method));
th.Start("参数"));
private void method(string s)
{}
public Thread(
ParameterizedThreadStart start
)
public delegate void ParameterizedThreadStart(
Object obj
)

[asdfa23rdadsdfa]

人生如梦。注释写下呗

[asdfa23rdadsdfa]

人生如梦。注释写下呗

[孟子E章]

Thread t = new Thread (new ParameterizedThreadStart(xxxx));
t.Start (System.Web.HttpContext.Current);

static void xxxx(object context)
{
HttpContext xtc = context as HttpContext
}

[孟子E章]

另外一个方法，你可以把你的Thread放在一个类里面，类里面定义一个 System.Web.HttpContext 类型的变量

[asdfa23rdadsdfa]

知道了。

[shfongfeng]

很有收获，刚遇到这问题，呵呵！谢谢各楼啊！

[AdmiralMeng]

楼主厉害，钓了俩老鬼出来。